Predicts and designs tumor homing peptides (THPs). TumorHPD is a web server that provides facility to predict THPs and allows to design analogues with better tumor homing abilities. The software generates all possible single substitution mutants of original peptide, then predicts whether mutants and original peptide is tumor homing or not and calculates support vector machine (SVM) score for each peptide, and important physicochemical properties (e.g. hydrophobicity, amphipathicity, etc.). Query can be submitted as peptide, protein and in batch mode.